Hi,
at the reset state all GPIO will be in input mode, what will be the delay from reset state to configuration, for a GPIO on the 3.3V domain, let say I need to configure a GPIO in output and set a specific level. I'm using the same booth up sequence as the 8M mini EVK, so what will be delay for the 3.3V to be ready and the GPIO configured?
Thank you
Martin
Most GPIO pins are input after reset and the software configures it as output. So the time is application dependent.
As for GPIO pins that are output by default (like PMIC_ON_REQ one) there is no time specified.
My question is more about the settle time from boot up, not at what speed we can toggle a GPIO. So how much time it will take from boot to fully configured GPIO?
Thank you
Martin
> So how much time it will take from boot to fully configured GPIO?
after POR release GPIO module is fully configured and ready to use,
please look at Figure 3. The power-up sequence
i.MX 8M Mini Applications Processor Datasheet for Consumer Products
Best regards
igor
Thank you
Hi Martin
i.MX8M Mini GPIO module is the same as in i.MX6Q,
with about 5MHz typical delays as described on
https://community.nxp.com/thread/323306
Best regards
igor
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